3803429 divided by 345 
We want to divide 3803429 by 345.

On to step 1:
345 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 345

Advancing to step 2:
When dividing 38 by 345, we get 0 with a remainder of 38.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 38 and we're left with 38.
Fetch the next digit (0) from the dividend, attach it to 38 and continue: 380 / 345

Moving on to step 3:
345 can be fit into 380 1 times, resulting in a remainder of 35.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 35 after subtracting 345 from 380.
Grab the next digit (3) from the dividend, add it to 35, then carry on: 353 / 345

Going ahead to step 4:
345 can be fit into 353 1 times, resulting in a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtracting 345 from 353 leaves us with 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 345

Let's proceed to step 5:
The number 345 fits into 84 0 times, leaving a remainder of 84.
The number 0 becomes the next digit in our result. 
Result so far: 110.0
The remainder is 84 after subtracting 0 from 84.
Fetch the next digit (2) from the dividend, attach it to 84 and continue: 842 / 345

Going ahead to step 6:
842 divided by 345 is 2 with a remainder of 152.
Use 2 as the next digit of our solution. 
Result so far: 1102.0
Subtract 690 from 842 to get 152.
Bring next digit (9) of the dividend behind the 152 and repeat the process: 1529 / 345

On to step 7:
1529 divided by 345 is 4 with a remainder of 149.
The number 4 becomes the next digit in our result. 
Result so far: 11024.0
If we subtract 1380 from 1529, we get 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Moving on to step 8:
345 can be fit into 1490 4 times, resulting in a remainder of 110.
Put 4 as the next digit of the answer. 
Result so far: 11024.4
If we subtract 1380 from 1490, we get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Step 9:
When dividing 1100 by 345, we get 3 with a remainder of 65.
Use 3 as the next digit of our solution. 
Result so far: 11024.43
The remainder is 65 after subtracting 1035 from 1100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 10:
The number 345 fits into 650 1 times, leaving a remainder of 305.
Record the quotient 1 as the next digit in the result. 
Result so far: 11024.431
Subtract 345 from 650 to get 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Advancing to step 11:
345 can be fit into 3050 8 times, resulting in a remainder of 290.
The number 8 becomes the next digit in our result. 
Result so far: 11024.4318
Deduct 2760 from 3050 and we're left with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

On to step 12:
When dividing 2900 by 345, we get 8 with a remainder of 140.
Record the quotient 8 as the next digit in the result. 
Result so far: 11024.43188
If we take 2760 away from 2900, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

The quotient of the division is 11024.43188, and the remainder is 0.00014.